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Table 2 Principal component analysis with oblique rotation

From: Tinnitus functional index: validation of the German version for Switzerland

Item Factor
1 Cognitive, Quality of Life, Emotional 2 Intrusive, Sense of Control 3 Auditory 4 Sleep 5 Relaxation
8 .739 .151 .349 .153 .272
20 .733 .383 .041 .271 .232
21 .719 .285 .405 .202 .028
19 .704 .284 .459 .190 .037
25 .693 .471 .135 .255 .258
22 .676 .233 .370 .206 .216
7 .648 .170 .398 .170 .407
23 .647 .472 .151 .185 .287
9 .603 .410 .299 .192 .315
24 .589 .552 .163 .201 .283
1 .251 .813 .193 .182 .153
3 .296 .774 .259 .179 .250
6 .303 .759 .134 .169 .251
2 .258 .716 .312 .181 .245
5 .497 .607 .200 .304 .262
4 .184 .596 .202 .240 .107
13 .225 .193 .880 .061 .138
14 .283 .211 .864 .134 .140
15 .339 .334 .807 .173 .010
11 .242 .232 .142 .885 .195
10 .198 .261 .101 .869 .247
12 .252 .231 .155 .865 .203
18 .238 .342 .121 .294 .791
16 .342 .380 .137 .310 .715
17 .406 .346 .113 .346 .681
Initial Eigenvalue 15.26 2.10 1.36 1.15 .80
% of variance 61.06 8.41 5.44 4.60 3.20
Cumulative % 61.06 69.46 74.90 79.50 82.70
  1. Appling the Jolliffe's criterion (eigenvalues >0.7) five factors could be extracted. The correlations between each item and the five factors are shown. The eigenvalues of each factor and its corresponding variance are also presented. The values less than 0.4 are italic